練習問題

Question04-while/.classpath

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+<?xml version="1.0" encoding="UTF-8"?>
+<classpath>
+	<classpathentry kind="con" path="org.eclipse.jdt.launching.JRE_CONTAINER/org.eclipse.jdt.internal.debug.ui.launcher.StandardVMType/JavaSE-21"/>
+	<classpathentry kind="src" path="src/main/java"/>
+	<classpathentry kind="output" path="build/classes"/>
+</classpath>

Question04-while/.gitignore

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+/build/

Question04-while/.project

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+<?xml version="1.0" encoding="UTF-8"?>
+<projectDescription>
+	<name>Question04-while</name>
+	<comment></comment>
+	<projects>
+	</projects>
+	<buildSpec>
+		<buildCommand>
+			<name>org.eclipse.jdt.core.javabuilder</name>
+			<arguments>
+			</arguments>
+		</buildCommand>
+		<buildCommand>
+			<name>org.eclipse.wst.common.project.facet.core.builder</name>
+			<arguments>
+			</arguments>
+		</buildCommand>
+	</buildSpec>
+	<natures>
+		<nature>org.eclipse.wst.common.project.facet.core.nature</nature>
+		<nature>org.eclipse.jdt.core.javanature</nature>
+	</natures>
+</projectDescription>

Question04-while/.settings/org.eclipse.jdt.core.prefs

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+eclipse.preferences.version=1
+org.eclipse.jdt.core.compiler.codegen.targetPlatform=21
+org.eclipse.jdt.core.compiler.compliance=21
+org.eclipse.jdt.core.compiler.problem.assertIdentifier=error
+org.eclipse.jdt.core.compiler.problem.enablePreviewFeatures=disabled
+org.eclipse.jdt.core.compiler.problem.enumIdentifier=error
+org.eclipse.jdt.core.compiler.problem.reportPreviewFeatures=warning
+org.eclipse.jdt.core.compiler.release=enabled
+org.eclipse.jdt.core.compiler.source=21

Question04-while/.settings/org.eclipse.wst.common.project.facet.core.xml

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+<?xml version="1.0" encoding="UTF-8"?>
+<faceted-project>
+  <installed facet="java" version="21"/>
+</faceted-project>

Question04-while/src/main/java/Q4_1.java

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+
+public class Q4_1 {
+
+	public static void main(String[] args) {
+		// TODO 自動生成されたメソッド・スタブ
+		int randomNumber=-1;    // カウンタ変数の初期化
+		while (randomNumber != 5) {
+		
+		// 1から9までの乱数を生成
+        randomNumber = (int)(Math.random() * 9);
+		
+        
+        	
+        	
+            
+            // 生成された乱数を表示
+            System.out.println("生成された乱数: " + randomNumber);
+        }
+	}
+
+}

Question04-while/src/main/java/Q4_2.java

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+
+public class Q4_2 {
+
+	public static void main(String[] args) {
+		// TODO 自動生成されたメソッド・スタブ
+		int num = 2;
+		
+		
+		while(num <= 1000){
+		num = num * 2;
+		}
+		System.out.println(num);
+	
+	}
+}

Question04-while/src/main/java/Q4_3.java

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+
+public class Q4_3 {
+
+	public static void main(String[] args) {
+		// TODO 自動生成されたメソッド・スタブ
+	int randomNumber=0;    // カウンタ変数の初期化
+	while (true) {
+		
+	// 1から9までの乱数を生成
+    randomNumber = (int)(Math.random() * 9);
+    
+    System.out.println(randomNumber);
+    
+    if (randomNumber == 5) {
+    	break;
+    }
+    
+    }
+    
+	} 
+    
+
+
+}